US3244640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for encapsulating liquids and capsules produced thereby
Assignee: Henkel AG and Co KGaA
•
Filing: 1962-06-13
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Granted: 1966-04-05
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Expires: 1982-06-13
Abstract
No abstract record available.
Inventors
- 👤 Studt Peter
- 👤 Zoebelein Hans
- 👤 Galinke Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:16
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/10; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS FOR ENCAPSULATING LIQUIDS BEING NOT MORE THAN SLIGHTLY MISCIBLE WITH WATER WHICH COMPRISES DISPERSING THE LIQUID IN AN AQUEOUS SOLUTION HAVING 0.5 TO 10% BY WEIGHT OF A WATER-SOLUBLE COPOLYMER OF ACRYLAMIDE AND AT LEAST ONE N-SUBSTITUTED ACRYLAMIDE HAVING THE FORMULA
Claim 2
Dependent Claim
43 words
A PROCESS FOR ENCAPSULATING LIQUIDS BEING NOT MORE THAN SLIGHTLY MISCIBLE WITH WATER WHICH COMPRISES DISPERSING THE LIQUID IN AN AQUEOUS SOLUTION HAVING 0.5 TO 10% BY WEIGHT OF A WATER-SOLUBLE COPOLYMER OF ACRYLAMIDE AND AT LEAST ONE N-SUBSTITUTED ACRYLAMIDE HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |